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公开(公告)号：US20150000772A1
公开(公告)日：2015-01-01
申请号：US14315650
申请日：2014-06-26
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA
IPC: B60K15/035 , B60K15/03
CPC classification number: B60K15/03519 , B60K2015/03296 , B60K2015/03514 , Y10T137/87265
Abstract: A valve device includes a first passage opened by a first valve member, a second passage opened by a second valve member, and a specific chamber in which an asymmetrical state is caused. When the second valve member is open, escape fluid flows through the specific chamber just before flowing into a second passage and collides a collision part located in the specific chamber. The escape fluid flowing in the specific chamber collides the collision part and is divided into two divided flows, and the two divided flows are joined again at downstream of the collision part. In the asymmetrical state, a difference is caused in a pressure loss between the two divided flows. By the asymmetrical state, a pressure loss as an entire of the specific chamber decreases, and frequency in using a valve mechanism can be reduced. Therefore, the valve mechanism can be used longer without omitting the specific chamber.
Abstract translation: 阀装置包括由第一阀构件打开的第一通道，由第二阀构件打开的第二通道，以及引起不对称状态的特定室。 当第二阀构件打开时，逸出流体在流入第二通道之前流过特定室，并碰撞位于特定室中的碰撞部件。 在特定室中流动的排出流体碰撞碰撞部分并分成两个分开的流动，并且两个分流在再次在碰撞部分的下游连接。 在非对称状态下，在两个分流之间的压力损失中产生差异。 通过不对称状态，作为整个特定室的压力损失减小，并且可以减少使用阀机构的频率。 因此，阀机构可以使用更长时间而不忽略特定的室。
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公开(公告)号：US20150226348A1
公开(公告)日：2015-08-13
申请号：US14619333
申请日：2015-02-11
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA , Yuichiro MIURA
IPC: F16K31/06
CPC classification number: F16K39/024 , F02M25/0836 , F02M2025/0845 , F16K31/0655
Abstract: A two-stage electro-magnetic valve maintains a pressing force applied onto a switch valve body from a press member after a lifting of an open-close valve body from a valve seat by an introduction of a pressure of a valve chamber. In such manner, the switch valve body need not be put in a pressure receiving state when the switch valve body is completely closed. In other words, it is not necessary for a pressure receiving diameter of the switch valve body to be smaller than a pressure receiving diameter of the open-close valve body. Such configuration increases design freedom of the pressure receiving diameter for the open-close valve body because it separates the diameter of the valve body from a diameter restriction of the switching valve body, which allows both valve bodies to have the same diameter, which maximizes the effect of a pressure cancel mechanism.
Abstract translation: 两级电磁阀通过引入阀室的压力而从打开关闭阀体从阀座提起后，保持从压力构件施加到开关阀体上的按压力。 以这种方式，当开关阀体完全关闭时，开关阀体不需要处于受压状态。 换句话说，开关阀体的受压直径不必小于开关阀体的受压直径。 这种构造增加了开关阀体的压力接收直径的设计自由度，因为它将阀体的直径与切换阀体的直径限制分开，这允许两个阀体具有相同的直径，这使得阀体的直径最大化 压力消除机构的作用。
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公开(公告)号：US20160237956A1
公开(公告)日：2016-08-18
申请号：US14994215
申请日：2016-01-13
Applicant: DENSO CORPORATION
Inventor： Kimio UCHIDA , Hirofumi ONODERA
CPC classification number: G05D7/01 , B60K15/03504 , F02M25/08 , F16K1/32 , F16K1/34 , F16K31/0655 , F16K31/0686 , F16K31/0693 , F16K47/08 , G05D7/0133
Abstract: An annular valve seat is projected radially inward from a passage wall. A valve element is located on the upstream side of the valve seat. A spring biases the valve element toward the upstream side. The valve element has a through hole to pass fluid between the upstream side and the downstream side when the valve element is seated on the valve seat. The valve element switches between a large opening state, in which the valve element is lifted from the valve seat to pass fluid around an outer circumferential periphery of the valve element and to pass through the through hole, and a small opening state, in which the valve element is seated on the valve seat to pass fluid through the through hole. The valve element is supported and slidable on a guide surface, which is formed on the passage wall, at the outer circumferential periphery.
Abstract translation: 环形阀座从通道壁径向向内突出。 阀元件位于阀座的上游侧。 弹簧偏压阀元件朝向上游侧。 阀元件具有通孔，以在阀元件就座于阀座时在上游侧和下游侧之间流动流体。 阀元件在大开口状态之间切换，其中阀元件从阀座提升以使流体围绕阀元件的外圆周传递并穿过通孔，并且小开口状态，其中 阀元件位于阀座上，以使流体通过通孔。 阀元件在形成在通道壁上的外周周边的引导表面上被支撑和滑动。
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公开(公告)号：US20200182199A1
公开(公告)日：2020-06-11
申请号：US16705461
申请日：2019-12-06
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA
Abstract: A flow control valve has a housing, a valve element, a drive member, a drive-member thread, a valve thread, a drive-member detent part, and a valve detent part. A direction where the valve element gets close to a valve seat is a positive direction and an opposite is a negative direction. A first value is a value indicating a distance from an end of the drive-member detent part in the positive direction to an end of the drive-member thread in the positive direction, and a second value is a value indicating a distance from an end of the valve detent part in the negative direction to an end of the valve thread in the negative direction. The second value is larger than the first value.
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Patent Agency Ranking
公开(公告)号：US20190353274A1
公开(公告)日：2019-11-21
申请号：US16385011
申请日：2019-04-16
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA
Abstract: A valve device includes a valve housing, a valve member, an engaging portion, a valve member side thread portion, a driving portion side thread portion, a driving portion, a first biasing member, a second biasing member, and a second biasing member support portion. The valve housing has a plurality of through holes through which a fluid flows, a valve seat formed around the first through holes of the plurality of through holes, and a valve chamber that communicates the plurality of through holes. In the valve device, the first through hole is formed on the movement axis of the valve member, and the second through hole is formed in a radially outward direction of the valve member. A distance between the second biasing member support portion and the valve seat is longer than a distance between the valve member and the valve seat.
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公开(公告)号：US20190277417A1
公开(公告)日：2019-09-12
申请号：US16264847
申请日：2019-02-01
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA
Abstract: A valve unit is moveably accommodated in a valve housing having a valve seat. A coil spring is provided at an outer periphery of the valve unit to bias the valve unit in an axial direction of absorbing a backlash between a driving-side screw portion of a driving portion and a valve-side screw portion of the valve unit. Pressure losses of fluid at respective portions are so made to satisfy a relationship of “P0≥P1≥P2”, wherein “P0” is a pressure loss of the fluid passing through an outlet port, “P1” is a pressure loss of the fluid passing through an axial space formed between the valve unit and the valve seat in a condition that the valve unit is most separated from the valve seat, and “P2” is a pressure loss of the fluid passing through an axial gap formed between neighboring spring wire portions or passing through an axial gap formed between the coil spring and the valve seat.
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公开(公告)号：US20180170343A1
公开(公告)日：2018-06-21
申请号：US15838737
申请日：2017-12-12
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA , Kunio NAMBA , Yasuo KATO
CPC classification number: B60W10/24 , B60K15/035 , B60K28/10 , B60K2015/03026 , B60K2015/0321 , B60K2015/03585 , B60K2015/0546 , F02D2041/225 , F02M25/0809 , F02M25/0836 , F02M25/089 , F02M2025/0845
Abstract: A controller controls a valve device for opening and closing of a passage to control a flow of evaporative fuel evaporating and flowing from a fuel tank. The valve device includes a valve body housed in the passage to open and close the passage, a biasing member biasing the valve body to close the passage, and a driver driving the valve body to open the fuel passage. The controller includes a detector detecting load of the driver and a determiner to determine the position of the valve body. The determiner determines that the passage is open when a magnitude of the change of the driver load is equal to or greater than a threshold value. The controller accurately detects an open valve position without detecting an internal pressure change of the fuel tank.
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公开(公告)号：US20160370812A1
公开(公告)日：2016-12-22
申请号：US15157659
申请日：2016-05-18
Applicant: DENSO CORPORATION
Inventor： Hiroyuki HARADA , Yuichiro MIURA , Hirofumi ONODERA , Kimio UCHIDA
IPC: G05D16/10 , F16K31/122 , F02M25/08 , F16K31/06
CPC classification number: G05D16/106 , B60K15/03519 , B60K2015/03302 , B60K2015/03585 , F02M25/0836 , F02M25/0854 , F16K1/526 , F16K31/06 , F16K31/0644 , F16K31/1221 , F16K31/1226 , G05D16/103 , G05D16/2086
Abstract: A valve device includes a valve seat forming member, a case, a first O-ring, and a second O-ring. The valve seat forming member is fit into a passage defining and forms a valve seat. The case houses an electromagnetic solenoid and is connected to the passage defining member. The first O-ring is interposed between an inner circumferential surface of the passage defining member and an outer circumferential surface of the valve seat forming member. The first O-ring prohibits the fluid from flowing through a space between the passage defining member and the valve seat forming member when the main valve body seats on the valve seat. The second O-ring is interposed between the case and the passage defining member. The second O-ring prohibits the fluid from flowing from the passage to an outside of the passage defining member.
Abstract translation: 阀装置包括阀座形成部件，壳体，第一O形环和第二O形环。 阀座形成构件配合到限定并形成阀座的通道中。 壳体容纳电磁螺线管并且连接到通道限定构件。 第一O形环插入在通道限定构件的内周表面和阀座形成构件的外周表面之间。 当主阀体位于阀座上时，第一O形环禁止流体流过通道限定构件和阀座形成构件之间的空间。 第二O形环插入在壳体和通道限定构件之间。 第二O形环禁止流体从通道流到通道限定构件的外部。
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公开(公告)号：US20160090945A1
公开(公告)日：2016-03-31
申请号：US14861277
申请日：2015-09-22
Applicant: DENSO CORPORATION
Inventor： Hirofumi ONODERA , Yuichiro MIURA
CPC classification number: F02M25/0836 , F02M25/089 , F02M2025/0845 , F16K1/526 , F16K1/54 , F16K31/0655 , F16K31/0686
Abstract: A two-stage changeover valve is provided in a vaporized fuel passage connected between a fuel tank and a canister. A valve member is movably accommodated in a fluid passage formed in a valve housing. A valve seat is formed at an inner peripheral wall of the valve housing, so that the valve member is operatively seated on the valve seat. A restricted communication hole is formed in the valve member, so that an upstream side and a downstream side of the valve member are communicated with each other, even when the valve member is seated on the valve seat. The restricted communication hole is formed in a Laval-nozzle shape, so that vaporized fuel passing through the restricted communication hole is accelerated. As a result, a process for depressurizing inner pressure of the vaporized fuel in the fuel tank can be carried out in a shorter time.
Abstract translation: 在连接在燃料箱和罐之间的蒸发燃料通道中设置有两级切换阀。 阀构件可移动地容纳在形成在阀壳体中的流体通道中。 阀座形成在阀壳体的内周壁处，使得阀构件可操作地安置在阀座上。 在阀构件中形成有限制的连通孔，使得阀构件的上游侧和下游侧彼此连通，即使阀构件就座于阀座上。 限制连通孔形成为拉瓦尔喷嘴形状，从而加速了通过限制连通孔的汽化燃料。 结果，可以在更短的时间内进行用于减压燃料箱中的汽化燃料的内部压力的过程。
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